7226.91.50.00 - Of a thickness of 4.75 mm or more

This HTS category, 7226.91.50.00, specifically classifies flat-rolled products of other alloy steel with a width of less than 600 mm, that are not further worked than hot-rolled, and critically, have a thickness of 4.75 mm or more. These are essentially hot-rolled steel strips and sheets made from alloy steels (excluding stainless steel and silicon-electrical steel, which have separate classifications) meeting this specific thickness threshold. The "other alloy steel" designation signifies steels alloyed with elements beyond carbon, such as manganese, chromium, vanadium, etc., to impart specific properties.

This category is distinguished from its sibling, "Of a thickness of less than 4.75 mm," solely by the physical dimension of thickness. Both share the same base material (other alloy steel), processing (not further worked than hot-rolled), and width limitation (< 600 mm). Therefore, the defining characteristic for differentiation at this level is precisely the 4.75 mm thickness benchmark.

As this is a leaf node within the HTS structure, there are no further subcategories under 7226.91.50.00. Classification decisions at this point rely entirely on confirming that the imported goods meet all preceding criteria: being flat-rolled, of other alloy steel, less than 600 mm in width, not further worked than hot-rolled, and with a thickness of 4.75 mm or greater.